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45 Commits

Author SHA1 Message Date
chenrun1 c9148fbb0a fs_msync:Fix crash caused under the anonymous mapping 
Summary:
 Limitations of using fs putfile

Signed-off-by: chenrun1 <chenrun1@xiaomi.com>
 2024-09-19 01:43:50 +08:00
wanggang26 484600bd75 mmap: add xip mmap type support 
Signed-off-by: wanggang26 <wanggang26@xiaomi.com>
 2024-09-19 01:43:50 +08:00
Shoukui Zhang 43223124ec vfs/file: add reference counting to prevent accidental close during reading writing... 
Signed-off-by: Shoukui Zhang <zhangshoukui@xiaomi.com>
 2024-09-17 12:01:53 +08:00
ouyangxiangzhen 0451ead2c5 fs/mmap: Ensure anonymous pages are initialized to zero 
According to the mmap(2) specification, anonymous pages should be initialized to zero unless the MAP_UNINITIALIZED is specified.

Signed-off-by: ouyangxiangzhen <ouyangxiangzhen@xiaomi.com>
 2024-09-13 09:10:21 +08:00
pengyinjie cbc9b98075 [FS]:Fixed spacing and typo issues in code comment descriptions 
[Desc]:as title

Signed-off-by: pengyinjie <pengyinjie@xiaomi.com>
 2024-08-27 21:52:56 +08:00
Yanfeng Liu a5b5c963c7 fs/mmap: enable parameter checks always 
These parameter checks should always be enabled.

Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
 2024-03-25 20:39:24 +08:00
cuiziwei a0206adcfa nuttx/fs:remove (flags & MAP_PRIVATE) == 0. 
NuttX not support MAP_PRIVATE currently.

Signed-off-by: cuiziwei <cuiziwei@xiaomi.com>
 2023-08-04 04:20:06 -07:00
fangxinyong d1825a7acb fs/mmap: only MAP_SHARED mapping need file write permisson 
If MAP_PRIVATE is specified, do not change the underlying object,
that is OK to open file with read-only permission. Change to pass:
testcases/open_posix_testsuite/conformance/interfaces/mmap/6-5.c

Signed-off-by: fangxinyong <fangxinyong@xiaomi.com>
 2023-08-02 22:57:28 -07:00
fangxinyong d892cda167 fs/mmap: fix mmap() wrong errno 
As posix spec, mmap() function shall fail with ENODEV if fd refers
to a file whose type is not supported. Change to pass ltp open_posix test:
testcases/open_posix_testsuite/conformance/interfaces/mmap/23-1.c

https://pubs.opengroup.org/onlinepubs/9699919799/functions/mmap.html

Signed-off-by: fangxinyong <fangxinyong@xiaomi.com>
 2023-08-02 22:57:28 -07:00
dongjiuzhu1 88161bfca5 fs/mmap: add sanity check 
Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
 2023-07-28 08:05:39 -07:00
dongjiuzhu1 f8b27d9fbe fs/mmap: try rammap when filesystem mmap don't support 
Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
 2023-03-10 10:43:33 +02:00
Xiang Xiao f8d33e40ac Fix mmap/fs_mmap.c:259:13: warning: 'mapped' may be used uninitialized in this function [-Wmaybe-uninitialized] 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-01-18 08:40:33 +01:00
chao an 3d7629a02c fs/mmap: fix compile warning if set the optimize level to O3 
| $ gcc -c "-O3" -Wall -isystem include -D__NuttX__ -D__KERNEL__ -I fs -I sched fs/mmap/fs_mmap.c -o fs_mmap.o
| include/sys/mman.h: In function ‘mmap’:
| fs/mmap/fs_mmap.c:259:13: warning: ‘mapped’ may be used uninitialized in this function [-Wmaybe-uninitialized]
|   259 |   FAR void *mapped;
|       |             ^~~~~~

Signed-off-by: chao an <anchao@xiaomi.com>
 2023-01-17 21:56:37 +08:00
Xuxingliang 9166eeddf6 fs/mmap: update mapped var before exit 
Signed-off-by: Xuxingliang <xuxingliang@xiaomi.com>
 2023-01-17 11:12:26 +08:00
Xiang Xiao fcd4a421e3 fs/mmap: Support the no backing file for anonymous mapping 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-01-12 19:11:56 +02:00
Xiang Xiao ab67d6a75b fs/mmap: Remove the duplication rammap handling 
and minor ifx for style and format

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-01-12 19:11:56 +02:00
Jukka Laitinen b8f23fc3f7 Move rammaps to use mm_map list 
Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
 2023-01-10 18:34:25 +08:00
Jukka Laitinen a5ed8014e8 Move anonymous mapping emulation into own module under fs/mmap 
Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
 2023-01-10 18:34:25 +08:00
Jukka Laitinen dd97900221 fs/mmap: Add mappings to mm_map list if CONFIG_MM_MAP is defined 
Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
 2023-01-10 18:34:25 +08:00
Xiang Xiao 1a59f4ed00 mm/map: Remove the unnessary map.h inclusion in various drivers 
and Fix include/nuttx/mm/map.h:55:28: error: 'struct task_group_s' declared inside parameter list will not be visible outside of this definition or declaration

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-01-05 16:06:53 +02:00
Jukka Laitinen f33dc4df3f Change FIOC_MMAP into file operation call 
- Add mmap into file_operations and remove it from ioctl definitions.
- Add mm_map structure definitions to support future unmapping
- Modify all drivers to initialize the operations struct accordingly

Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
 2023-01-02 11:23:20 -03:00
Alan C. Assis 9d79f82e24 mmap: Fix note: initialize the variable 'ret' 2021-08-10 09:08:25 -07:00
Xiang Xiao 8612af4ae5 fs: Implement file_mmap and file_munmap API 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2021-07-06 11:18:13 +09:00
Xiang Xiao 06215be327 mmap: Implement the minial but reasonable mlock/munlock/mprotect 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I538e0d78ecd0680374a2e0f56adbc61d7a4e6d1f
 2021-07-01 08:06:54 +09:00
Gustavo Henrique Nihei c80cdf06c2 fs/mmap: Return EACCES for incompatible file descriptors 2021-03-16 10:17:07 -07:00
Gustavo Henrique Nihei ecb9e03a7f fs/mmap: Update mmap documentation of possible return values 2021-03-15 20:02:52 -07:00
Gustavo Henrique Nihei 00d9f81919 fs/mmap: Clarify MAP_PRIVATE dependency on CONFIG_FS_RAMMAP 2021-03-15 20:02:52 -07:00
Xiang Xiao 9473434587 Ensure the kernel component don't call userspace API 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2021-03-01 09:23:09 +09:00
Alin Jerpelea f9fb182809 Author: Gregory Nutt: update licenses to Apache 
Update files from Gregory Nutt to Apache 2.0 license.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
 2021-02-05 12:15:56 -03:00
Xiang Xiao 0536953ded Kernel module should prefer functions with nx/kmm prefix 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2021-01-13 08:57:58 +01:00
YAMAMOTO Takashi bc9e28eb35 fs/mmap/fs_mmap.c: Fix a syslog format error 2020-11-20 22:22:53 -08:00
Xiang Xiao afb40d87fb fs/mmap/fs_mmap.c: Add support for MAP_PRIVATE. 2019-11-23 08:07:04 -06:00
Gregory Nutt 419c4cb6be A little more progress toward the implementation of per-window framebuffers. Still missing: 
- Logic that generates the low lever framebuffer renderers for the per-window framebuffers,
- The logic that picks off the per-window framebuffer updates from normal graphics device updates.  This logic must update both the per-window framebuffer and the graphics device (from the framebuffer).

Squashed commit of the following:

    graphics:  Add logic to allocate the per-window framebuffer.

    graphics:  A few fragmentary thoughts on how a per-window framebuffer could be represented and allocated.
 2019-03-14 11:20:14 -06:00
Gregory Nutt b54ffe858a Standardization of some function headers. 2018-03-13 09:52:27 -06:00
Gregory Nutt ad2f7b0119 fs/: Change some *err() message to *info() messages if what was a *dbg() message does not indicate and error condition. 2016-06-11 17:14:02 -06:00
Gregory Nutt a1469a3e95 Add CONFIG_DEBUG_ERROR. Change names of *dbg() * *err() 2016-06-11 15:50:49 -06:00
Gregory Nutt 1cdc746726 Rename CONFIG_DEBUG to CONFIG_DEBUG_FEATURES 2016-06-11 14:14:08 -06:00
Gregory Nutt c70987e551 nuttx/fs: Fix some spacing and alignment issues 2015-10-11 11:39:29 -06:00
Gregory Nutt cb9e27c3b0 Standardize naming used for public data and function groupings 2015-10-02 16:30:35 -06:00
Gregory Nutt ae90309b36 Move fs/fs.h to fs/inode/inode.h and some to fs/driver/driver.h 2014-09-29 07:14:38 -06:00
Gregory Nutt d038133501 Rename fs/fs_internal.h to fs/fs.h 2014-09-28 09:13:56 -06:00
Gregory Nutt 220216cc38 nuttx/fs: Remove explicity references to errno. That is a problem from within the kernel for certain configurations 2014-08-28 16:58:43 -06:00
patacongo 7a9457bb07 Email address change in nuttx/ 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5145 42af7a65-404d-4744-a932-0658087f49c3
 2012-09-13 18:32:24 +00:00
patacongo 36a7f0be04 Complets ram mapping logic 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3578 42af7a65-404d-4744-a932-0658087f49c3
 2011-05-08 14:42:42 +00:00
patacongo 248af62f80 Add fs/mmap 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3576 42af7a65-404d-4744-a932-0658087f49c3
 2011-05-07 20:08:46 +00:00