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authorDenys Vlasenko2021-10-08 02:16:41 +0200
committerDenys Vlasenko2021-10-08 02:20:10 +0200
commitcf4dc4a09d2a7516e00c276396da85e1088a0ddf (patch)
tree46d0b4717e89b20a470147be524472cad7ffeb4c /networking/httpd_post_upload.cgi
parentc28313bb176639e1e4b11a63f6452baebf69f28e (diff)
downloadbusybox-cf4dc4a09d2a7516e00c276396da85e1088a0ddf.zip
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mount: "mount -o rw ...." should not fall back to RO mount
The reported case was an attempt to remount,rw a CD-ROM: mount -o remount,rw /mnt/sr0 which "succeeded" by falling back to RO: mount("/dev/sr0", "/mnt/sr0", 0x412862, MS_REMOUNT|MS_SILENT|MS_RELATIME, "nojoliet,check=s,map=n,blocksize"...) = -1 EROFS (Read-only file system) ... mount("/dev/sr0", "/mnt/sr0", 0x412862, MS_RDONLY|MS_REMOUNT|MS_SILENT|MS_RELATIME, "nojoliet,check=s,map=n,blocksize"...) = 0 Clearly, not what was intended! function old new delta parse_mount_options 241 267 +26 mount_main 1198 1211 +13 singlemount 1301 1313 +12 inetd_main 1919 1911 -8 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/1 up/down: 51/-8) Total: 43 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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